<script>
import {mapState,mapGetters,mapActions,mapMutations} from 'vuex'
export default {
  name: "Count",
  data() {
    return {
      n: 1, //选择的数字
    }
  },
  methods: {
    // ...mapActions(['addOdd','addWait']),
    // ...mapMutations(['ADD','MINUS']),


    //借助mapMutations生成对应的方法，方法中会调用commit去联系mutations(对象写法)
    ...mapMutations('countAbout',{increment:'ADD',decrement:'MINUS'}),


    //借助mapActions生成对应的方法，方法中会调用dispatch去联系actions(对象写法)
    ...mapActions('countAbout',{incrementOdd:'addOdd',incrementWait:'addWait'})

  },
  mounted() {
    console.log('Count组件挂载完毕,',this)
  },
  computed: {

    //借助mapState生成计算属性，从state中读取数据，数组写法
    ...mapState('countAbout',['sum','school','subject']),
    ...mapState('personAbout',['personList']),

    //借助 mapGetters 生成计算属性，从getters中读取数据，数组写法
    ...mapGetters('countAbout',['bigSum']),

  }
}
</script>

<template>
<div>
  <h1>当前求和为：{{sum}}</h1>
  <h3>放大十倍：{{bigSum}}</h3>

  <h3>我在{{school}},学习{{subject}}</h3>
  <select v-model.number="n">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
  </select>
  <button @click="increment(n)">+</button>
  <button @click="decrement(n)">-</button>

  <button @click="incrementOdd(n)">当前求和为奇数再加</button>
  <button @click="incrementWait(n)">等一等再加</button>

  <div>
    <h3>下方总人数：{{personList.length}}</h3>
  </div>
</div>
</template>

<style scoped>

</style>